Sinus Infection:
It sounds like it may be safer not to use antibiotics. A steroid spray with a course of Prednisone may help. Even gentle saline spray may be useful. Talk to your doctor about your allergies and testing to confirm them. All the best.
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9

Oral candidiasis :
Patients who take antibiotics commonly develop candida infection or thrush that cause burning pain in the mouth and tongue. Eating yogurt or taking probiotics may help to prevent this problem. Topical antifungals usually used to treat it.
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10

Yes Vancomycin:
absorbs just fine if you give it IV. For Strep pneumo infection depending on the site, Vancomycin and Levaquin (levofloxacin) would be more than enough. Though Strep pneumo is encapsulated organism and therefore can be resistant to many antibiotics, this combination should reduce that chance to very small. Thanks for trusting in HealthTap.
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13

None of these:
See a DR, preferably a dermatologist. Begin with a diagnosis. Hidradenitis suppuritiva? Folliculitis? Distribution, location of "boils"? Specific features of them? How long? Best treatment can be determined by exam and evaluation of your entire physical state. With your stomach problem you should avoid any meds not clearly of benefit. Why no med for BP?
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18

Bactrim (sulfamethoxazole and trimethoprim) For MRSA:
If the strain of MRSA is sensitive to bactrim, (sulfamethoxazole and trimethoprim) the normal dose in a patient with normal kidney function would be one Bactrim (sulfamethoxazole and trimethoprim) ds tablet every 12 hours.
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19

Very Rarely. :
Usually this is not the antibiotic of preference for a tooth abscess.
Nevertheless, your doctor may prescribe another type of antibiotic as he/she considers appropriate given the individual situation of the case including medical history, etc.
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